It's funny, I just released a video with the spark gap transmitter, doing it the way you say it is wrong at 14:35. Wish I had seen your video first! You might be right, but I'm still not sure which way is worse on the transformer. the spark duration is much longer than the resonance frequency, so the short could be more harmful to the transformer if spark gap is across transformer. And also the resonance frequency is pretty high, blocked by high inductance of the transformer. So if the capacitor is across the transformer, the high frequency energy into the transformer should be small. So something to consider and test and prove which way is better.
It depends if your transformer is current limited. On a neon sign transformer or a flyback transformer I would not use the "wrong" circuit but on a microwave oven transformer that can deliver a lot of current I would personally rather go with the "wrong" version as shorting it out seems to be much worse.
I imagine it also depends on how tolerant the transformer's insulation is of high frequency high voltage backfed into the secondary (I'd rather not risk that with any transformer not specifically rated to tolerate it), but I think the Tesla coil's primary is a near-short circuit at 50/60Hz anyway so using the "wrong" circuit wouldn't help much in that regard either.
The inductance should block the high frequency but its about the capacitance, because dependant on the frequency the interwinding capacitance could break down the insulation and break it, its simply safer to short it than risk it.
@Abstractism he's alive and well, he is still doing h.v stuff and having fun however his interest in youtube has failed so pretty doubtful we will ever see a return. source: someone whom has spoken with him.
Yeah, but rather than a very high ratio resonant transformer, marconi used a coupling one, for reducing the bandwidth, and the monopole wire antenna and the ground
i started to get interested in electrics about three years ago, back then you were talking gibberish, but now i actually understand the words that are coming out of your mouth, this is a damn milestone for me.
@@fungusenthusiast8249 Yes, of course, I used the web java TC, the only thing I didn't do well at all is the secondary coil which is too high for the diameter it has and that makes it lose some efficiency.
Viewers, this is one of the very few CORRECT explanations on YT of how a SGTC works! Well done sir. As a practical detail, it is worth mentioning that a long streamer discharge from the secondary can slightly reduce the secondary resonant frequency, perhaps by 3% to 5%, and it is this slightly reduced secondary frequency that should be matched with the primary frequency.
I would be interested in the maths behint it. Maybe you can make a seperate episode about the maths or tell us a bit about it. The ppl that dont want to hear it can just skip it and the others can enjoy :-)
Unfortunately, many years ago I used the "wrong configuration" and shorted out my neon transformer secondary, it arced across one of the secondary coils! There wasn't a lot of good information out there back then but now there is a lot of good information but unfortunately more than enough bad information too! You did a great job explaining things.
This is the video I was waiting for many years....🔥🔥💯💯💯.... Got new information about the schematic.......eagerly waiting for the other part of the video...🙏🏻
This is so cool. I'm really looking forward to the next instalments. Styropyro made a spark gap Tesla coil, but he didn't really explain how it works. I have no doubt that you will be very thorough in your explanations, as you always are. I learned a lot from Big Clive, but I've learned even more from you, thank you for all you do, I wish I had the cash to support you on patreon.
Rectify AC to DC to prevent alternations. (Tesla used DC generator to power his coils). Use carbon rods for spark gap. Use two pyramid shaped magnets to magnetically quench spark gap between north and south poles. Seal spark gap in nitrogen gas so nitrogen gas can absorb electrons. Use diodes in the circuit to prevent any back-rush so energy flow is unidirectional at all times. Make sure the energy flow in the circuit is a series of high voltage impulses/spikes instead of continuous flow. If you start getting large silver-white sparks with blue darts from the top load, you have succeeded in producing radiant energy sparks. This is what Tesla was doing. Read Gerry Vassilatos's book "Secrets of Cold War Technology" for more information.
Im almost finished with a SGTC build of mine. My first tesla coil. Its coming along well actually. Also might i reccomend a film capacitor, CBB-81. it cant handle more than 2000v on its own. But in series with more of the same capacitor it can handle much more. Using just one, ive gotten sparks around 3-4 inches long. I beleive its classified as a pulse capacitor.
Nejlepší zapojení je takzvané DC resonant charging tesla coil, kdy se napětí usměrní a vyhladí baterií kondiků, z nich se to pak přes diodu a tlumivku pouští do MMC, před ním je paralelně rotační jiskřiště, takové zapojení je mnohem více efektivní než tady toto jednoduché, výboje jsou mnohem delší a silnější z takového teslova transformátoru, pokud se ale v takovém zapojení použije statické jiskriste tak se ztrácí tak 1/3 celého potenciálního výkonu takového zapojení, ideální je tedy použít rotační jiskriste, úplně nejlepší je mít motor z pračky třeba a ladit mu otáčky (u nich to jde velmi snadno a jde použít mnoho způsobů, každý má své výhody a nevýhody), otáčkami se ladí počet přeskoků za minutu a tak i výkon, výpočty jsou docela snadné, přesně takové zapojení stavím já, mám dvě menší a budu stavět ten velký taky v blízké době. Tady tyto jednoduché zapojení já moc nedoporučuji ikdyz nepotřebují moc součástek, tak stejně to dc zapojení vyjde ve výsledku mnohem efektivnější, výkonnější a taky to má větší efekt a o něm to hlavně je. Jestli to neznáš, tak doporučuji si o tom něco zjistit 👍
Já samozřejmě vím, že s rotačním jiskřištěm atd je to účinnější, ale rozhodl jsem se pro to jednoduchý historický zapojení. V jednoduchosti je krása. Když už by šlo o účinnost, tak se rovnou může postavit SSTC. Ale asi nemá cenu řešit účinnost zařízení, který nemá žádný praktický využití :). A ono i statický jiskřiště funguje docela dobře, když jsou elektrody dostatečně masivní, a třeba i víc mezer. Mně se minule osvědčily 4 měděný trubky (tzn. 3 mezery). A větrák u toho taky pomůže.
@@DiodeGoneWild ono když uz bys tam přidal usměrňovač a odpor do série pro ochranu diod proti zbytkovému vf co projde přes jiskriste (ikdyz většina je opravdu zkrstována pryč) tak dosáhnes mnohem lepších výsledků, kdyztak pak můžeš zkusit, pár diod, tím nic nezkazíš ⚡🛠️
I can see how the low impedance of the ionised spark gap will start the lc oscillations into the tesla coil but surely it also puts a short circuit across the high voltage side of the first transformer which is connected to the mains feed. I would have expected to see some sort of ballast resistance on the mains side or indeed on the hv side before the spark gap ? Maybe a 2kw radiant fire would do it.
But are you going to make another SSTC? I actually wanted to try out your IR2153 based driver for a while but I'd like to see you explain it before I start winding coils :D
What you are stating at 14:35 and 16:03 in your video I would agree with when it comes to mains input driven tesla coil setups, but, when using HF drivers such as ZVS and flyback transformers the "wrong" schematic is the only one that will work, the traditional tesla coil primary drive design does not work in an HF drive setup. You are welcome to try for yourself and see.
Thank you for this new series. Your explanations of circuitry are very good and I'm waiting next episodes. I have already made secondary TC of 1300 x 0,2 mm and 5,5 cm x 25 cm long but is it too small for SGTC? My original plan was to use it as SSTC coil.
Could you improve the performance of the Tesla coil by using a HV-SMPS on the input, rather than a simple xformer? Also, could you use an SCR or other device instead of a spark gap, to reduce the energy lost in heating the air?
Fascinating stuff! It it possible to put a voltage multiplier at the primary side for say using a different primary transformer type, or alternately to operate off batteries?
@The RetroGamer: It would be very interesting from an academic point of view but not very useful in practice: this method was abandoned due to its poor transmission efficiency: all the energy used for the spark did not go in the antenna!
Is there any reason that you wouldn't use a bridge rectifier after the first transformer to charge the capacitor from a consistent peak voltage? A set of 10 4KV GP02-40-E3/54 diodes costs about $3.15 on digikey. A 10 nF 6KV capacitor is available for less than $2 and a 100nF capacitor is available for less than $10, also on digikey. A possible additional benefit of this approach is that film capacitors usually have a much higher DC voltage rating compared to their AC voltage rating. Of course this capacitor would repetitively go from max voltage down to the voltage where the spark quenched, so maybe that's not really DC...
It is such a pity that neither, DiodeGoneWild, nor ElectroBOOM, did explain the detail of these two circuits shown at 13:08 and 13:11. It all has to do with matching, in one case the source output impedance being matched to the input impedance of a parallel LC tuned circuit operating at resonance and the other case of matching the source output impedance to the input impedance a series LC tuned circuit working at resonance. The output impedance of a "step-up" high voltage transformer is normally very high due to the number of turns and so it may be considered as a constant current generator and this is an excellent source to feed a PARALLEL LC TUNED CIRCUIT as Electro BOOM did, but this current source feeding a parallel LC tuned circuit operating at resonance will produce a very high output voltage which will be reflected on the insulation of the transformer as suggested by Diode Gone Wild. Again this is a case of a current source feeding a high impedance load which is a perfect matching. The output voltage of a current source depends on the impedance level of the load. With the circuit suggested by DiodeGoneWild, the tuned circuit is a series circuit that has a very low impedance at resonance and so it must be fed from a voltage source with a low output impedance as otherwise matching is not achieved. The high output impedance of the high voltage transformer is changed to a low output impedance by introducing the spark gap across it, which in fact acts as a short circuit with low impedance. THIS WILL NOT HURT THE CURRENT SOURCE MADE UP OF THE SECONDARY OF THE HIGH VOLTAGE TRANSFORMER as it is basically a constant current source.. This video is one of the issues many students have problems with and DiodeGoneWild should be congratulated for what he picked up between the time duration 13:08 and 13:31. Note DiodeGoneWild should not have said that the circuit dealing with a parallel LC tuned circuit is WRONG as it is not, and it is correct provided that the insulation of the secondary of the transformer acting as a current source is good enough to take the high voltage punishment of a parallel tuned LC resonating circuit. So the theory is perfectly correct of both circuits and it is the practical limitations that would prefer the spark gap to be right across the secondary of the high voltage transformer acting as a current source. This becomes a case of a voltage source feeding the low impedance of a series LC circuit working at resonance where the source will have a low voltage and a high current. This is the reason why placing a capacitor across the spark gap of a fly-back TV high voltage coil will produce what can be said to be a stronger spark. If one pays attention to the color and nature of the spark, one can tell whether the source is acting as a current source or a voltage source!!!!!
Hei. I wanted to ask. Roughly Joe much current must flow in the circuit. Because I connected but it's not working I'm even thinkin the high voltage transformer I'm using isn't giving me enough current and power
4 роки тому+1
Bude něco o SSTC ? snažil jsem se postavit přesně podle tvé SSTC 2. a akorát mi maximálně tak vybouchly tranzisotry :D
Does the LC oscillation make it back across the mains transformer from the secondary to the primary? If so, doesn't that dump a bunch of HF noise into your line?
No. The low frequency line transformer windings offer high inductance to the high frequency currents and thus there is little or no HF current in either the secondary or primary of the line transformer.
@@cjay2 There's more than one "inductance" encountered in the design of a transformer: The "main" inductance is presented across the applied voltage; it's true enough that very little current will flow through this at HF, but it doesn't impede *transformation* of high frequencies. "Leakage" inductance (effectively in series with the windings, created by imperfect coupling) does impede the pass-through of higher frequencies (so SMPS often have to take measures to reduce it); its amount depends on the construction of the transformer. (Consider that an "ideal" transformer would have *zero* leakage inductance; while all real transformers have some, it's usually fairly small unless deliberately designed in. That may be true of short-circuit-proof transformers as would be used with this, but then it'll also be a rather lossy inductance at RF given the core material.) In short, while it may help, I wouldn't rely on it alone to reduce RFI to acceptable levels unless actually tested against the relevant standards.
Well, if you put ultrasonic speakers with 300kHz and 100kHz frequency with your tesla coils and put your hand between, then all the virus will die with some of your cells
I have built a 1,9 meter tall Quad-MOT asynchronous RSGTC acording to this schematic www.loneoceans.com/labs/teslacoil2/ . At first I had 4 MOT with 2 MOT´s as a ballast, with the secondaries shorted out and the primaries in parralel, both MOT´s in series with my 4 main MOT´s(secondaries all in series so about 9kV) and I was getting about 80cm sparks out of the tesla coil. I wanted longer sparks so I tried it without the ballast and I also had 10 MOC´s in series with my Power supply for resonance. Amazingly my 16A breaker didn´t trip but I was getting shorter Sparks than before . Also my Asynchrones RSGTC strangely behaves as a Synchrones one, which means I have to run it at 50 or 100 bps or I don´t get any sparks at all. Ps.: Love your videos and sorry for my bad english (Greetings from Austia) It would be very nice if you could help out a bit; my dad and I are a bit frustrated Thanks!
can you tell me how can the spark gap turn off when the transformer is still outputting a high voltage ? how can the capacitor charge multiple times in one oscillation of the main power ?
im wondering could you make something for normal multimeter to measure ac or dc current like clamp meter by adding some winding and core then connect it to normal multimeter to measure current ?!
Is just an high frequency transformer that is applied high voltage in a low voltage side and the outbut of thi extra high voltage it is higher bcz is applied high voltage per turn in primary of tesla coil
could I also use a ZVS driver (Outputs 50KV DC) I think I could because the capacitor would still charge up and discharge/oscillate with the coil. I amalso thinking about using a high voltage variable capacitor.
You might be able to do that if you put a low value high capacitor across the output (of course with a high value resistor in series) and then a spark gap and another capacitor in series with the tesla coil secondary (the first cap would not resonate but just store energy) .
Shouldn't the capacitor be charged up with DC rather than AC? Or is the principle that the charging, sparking, discharge oscillation all takes place in one half-cycle of the mains, then over again in the opposite polarity? Would that effectively give twice the output voltage, running the output transformer one way then the other? Have I answered my own question? It's just usually in spark gap circuits one charges up a cap from DC fairly slowly til the gap conducts, I don't think I've seen it this way, but then I'm definitely not an expert. The higher-frequency oscillation for the output coil is generated by the spark gap oscillating, right? Cos they're negative-resistance oscillators. The stuff people had to put up with before amplification was invented! Amazing how dear Nikola used Steam Age technology to do Space Age work!
Omar Abbassi basically two conductors close enough so a electric spark occurs when voltage goes high enough. The air is a good insulator but when an electric arc is made then the electric arc becomes a good conductor, that’s why he talks about a low voltage drop there.
It's funny, I just released a video with the spark gap transmitter, doing it the way you say it is wrong at 14:35. Wish I had seen your video first! You might be right, but I'm still not sure which way is worse on the transformer. the spark duration is much longer than the resonance frequency, so the short could be more harmful to the transformer if spark gap is across transformer. And also the resonance frequency is pretty high, blocked by high inductance of the transformer. So if the capacitor is across the transformer, the high frequency energy into the transformer should be small. So something to consider and test and prove which way is better.
It depends if your transformer is current limited. On a neon sign transformer or a flyback transformer I would not use the "wrong" circuit but on a microwave oven transformer that can deliver a lot of current I would personally rather go with the "wrong" version as shorting it out seems to be much worse.
I imagine it also depends on how tolerant the transformer's insulation is of high frequency high voltage backfed into the secondary (I'd rather not risk that with any transformer not specifically rated to tolerate it), but I think the Tesla coil's primary is a near-short circuit at 50/60Hz anyway so using the "wrong" circuit wouldn't help much in that regard either.
Hi Electroboom love your vids :D
Big fan 😀
The inductance should block the high frequency but its about the capacitance, because dependant on the frequency the interwinding capacitance could break down the insulation and break it, its simply safer to short it than risk it.
DiodeGoneWild transforming to Photoninduction.
Cat left the house.
Cat.7 enters the house XD
BIG TWIST .... It actuallly is Photoninduction buth with insane accent 😅😅😅
@Abstractism he's alive and well, he is still doing h.v stuff and having fun however his interest in youtube has failed so pretty doubtful we will ever see a return.
source: someone whom has spoken with him.
Finally, someone that explains properly the circuit, really good video
The schematic is actually very similar to Marconi's early radio transmitters! Thanks for a great explanation :)
Yeah, but rather than a very high ratio resonant transformer, marconi used a coupling one, for reducing the bandwidth, and the monopole wire antenna and the ground
i started to get interested in electrics about three years ago, back then you were talking gibberish, but now i actually understand the words that are coming out of your mouth, this is a damn milestone for me.
This is awesome Diode! Thank you for the excellent content!
I have never seen such an in depth explanation of the Tesla Coil. Absolutely great! Than you!
I am really excited for the next episodes.
0:16 "There's no scientific proof that Tesla coils help against coronavirus" 😂😂😂😂😂
They do help, at least if u use them to tase people that spread the virus on purpose or if u use the coil to punch this people with it XD
@@legominimovieproductions yeah for people that go outside for no reason in my country while our government said stay home
I guess it could really help since the produced ozone will sanitize the air that could have coated Corona virures in it
If you die you won't get the virus
Corona virus !!!!!😂😂😂😂😂
Thank you so much , the first person who actually explains it and shows us how to build it , THANK YOU !! 😍💚
Excellent tutorial details perfectly how it's done.
I made a coil with 4 microwave transformers in series and have reached sparks of more than 1m .
did you have to tune yours to get the right frequency?
@@fungusenthusiast8249 Yes, of course, I used the web java TC, the only thing I didn't do well at all is the secondary coil which is too high for the diameter it has and that makes it lose some efficiency.
Viewers, this is one of the very few CORRECT explanations on YT of how a SGTC works! Well done sir. As a practical detail, it is worth mentioning that a long streamer discharge from the secondary can slightly reduce the secondary resonant frequency, perhaps by 3% to 5%, and it is this slightly reduced secondary frequency that should be matched with the primary frequency.
Looking forward to the next article!
Thanks for the very clear explanation. Very useful!!!
I just love your videos
Best explanation video I've seen yet.
Just yesterday I made the secondary winding, these videos can help me! Thank you 👍
I would be interested in the maths behint it. Maybe you can make a seperate episode about the maths or tell us a bit about it. The ppl that dont want to hear it can just skip it and the others can enjoy :-)
*You dont want to see the math.*
@@nightrous3026 I want to suffer.
Wonderful explanation.
Unfortunately, many years ago I used the "wrong configuration" and shorted out my neon transformer secondary, it arced across one of the secondary coils! There wasn't a lot of good information out there back then but now there is a lot of good information but unfortunately more than enough bad information too! You did a great job explaining things.
I am from Haiti
I never miss a video
Excellent series. The BEST. Thank you so much for sharing. LOVE your CAT :)
Finally, the moment we've all been long waiting for, has come.
This is the video I was waiting for many years....🔥🔥💯💯💯....
Got new information about the schematic.......eagerly waiting for the other part of the video...🙏🏻
It's very kind of you to show a complete guide :)
Thanks so much for the easy to understand in depth explanation
Omg you are such a good teacher. If only i could double-like...
Your video is very good thanks bro the explanation was amazing
This is so cool. I'm really looking forward to the next instalments. Styropyro made a spark gap Tesla coil, but he didn't really explain how it works. I have no doubt that you will be very thorough in your explanations, as you always are. I learned a lot from Big Clive, but I've learned even more from you, thank you for all you do, I wish I had the cash to support you on patreon.
You deserve million subscribers
Very helpful explanation. Thanks you.
Rectify AC to DC to prevent alternations. (Tesla used DC generator to power his coils). Use carbon rods for spark gap. Use two pyramid shaped magnets to magnetically quench spark gap between north and south poles. Seal spark gap in nitrogen gas so nitrogen gas can absorb electrons. Use diodes in the circuit to prevent any back-rush so energy flow is unidirectional at all times. Make sure the energy flow in the circuit is a series of high voltage impulses/spikes instead of continuous flow. If you start getting large silver-white sparks with blue darts from the top load, you have succeeded in producing radiant energy sparks. This is what Tesla was doing. Read Gerry Vassilatos's book "Secrets of Cold War Technology" for more information.
I see you post videos more frequently during quarantine. Well spent time!
Trzymaj się mój Czeski bracie :D
Helpful information. I like it
Already exited for part 2
Wow I can wait for this project to come to life!
Very thorough explanation and another great video thank you!!
One of few who actually got it right!
If the cat doesn't sit on the schematic, then it's super dodgy.
Excellent theory explanation :)
Im almost finished with a SGTC build of mine. My first tesla coil. Its coming along well actually. Also might i reccomend a film capacitor, CBB-81.
it cant handle more than 2000v on its own. But in series with more of the same capacitor it can handle much more. Using just one, ive gotten sparks around 3-4 inches long. I beleive its classified as a pulse capacitor.
Im just waiting for more capacitors to come in the mail actually. Should arrive in under a month.
Nejlepší zapojení je takzvané DC resonant charging tesla coil, kdy se napětí usměrní a vyhladí baterií kondiků, z nich se to pak přes diodu a tlumivku pouští do MMC, před ním je paralelně rotační jiskřiště, takové zapojení je mnohem více efektivní než tady toto jednoduché, výboje jsou mnohem delší a silnější z takového teslova transformátoru, pokud se ale v takovém zapojení použije statické jiskriste tak se ztrácí tak 1/3 celého potenciálního výkonu takového zapojení, ideální je tedy použít rotační jiskriste, úplně nejlepší je mít motor z pračky třeba a ladit mu otáčky (u nich to jde velmi snadno a jde použít mnoho způsobů, každý má své výhody a nevýhody), otáčkami se ladí počet přeskoků za minutu a tak i výkon, výpočty jsou docela snadné, přesně takové zapojení stavím já, mám dvě menší a budu stavět ten velký taky v blízké době. Tady tyto jednoduché zapojení já moc nedoporučuji ikdyz nepotřebují moc součástek, tak stejně to dc zapojení vyjde ve výsledku mnohem efektivnější, výkonnější a taky to má větší efekt a o něm to hlavně je. Jestli to neznáš, tak doporučuji si o tom něco zjistit 👍
Já samozřejmě vím, že s rotačním jiskřištěm atd je to účinnější, ale rozhodl jsem se pro to jednoduchý historický zapojení. V jednoduchosti je krása. Když už by šlo o účinnost, tak se rovnou může postavit SSTC. Ale asi nemá cenu řešit účinnost zařízení, který nemá žádný praktický využití :). A ono i statický jiskřiště funguje docela dobře, když jsou elektrody dostatečně masivní, a třeba i víc mezer. Mně se minule osvědčily 4 měděný trubky (tzn. 3 mezery). A větrák u toho taky pomůže.
@@DiodeGoneWild ono když uz bys tam přidal usměrňovač a odpor do série pro ochranu diod proti zbytkovému vf co projde přes jiskriste (ikdyz většina je opravdu zkrstována pryč) tak dosáhnes mnohem lepších výsledků, kdyztak pak můžeš zkusit, pár diod, tím nic nezkazíš ⚡🛠️
@@PatrikRokl hoření oblouku v jiskřišti se člověk chce vyhnout, takže takové nápady by nefungovaly
I can see how the low impedance of the ionised spark gap will start the lc oscillations into the tesla coil but surely it also puts a short circuit across the high voltage side of the first transformer which is connected to the mains feed. I would have expected to see some sort of ballast resistance on the mains side or indeed on the hv side before the spark gap ? Maybe a 2kw radiant fire would do it.
Typically an old school iron cored neon sign transformer is used and those are current limited by design to properly drive neon tubes.
Nice presentation. Thanx. Hope the cat's not hiding already.
I m looking forward to make one of these. Thank you for explanation.
Ohh boy ! Thats it,very good !
But are you going to make another SSTC? I actually wanted to try out your IR2153 based driver for a while but I'd like to see you explain it before I start winding coils :D
One day ... probably yes :).
@@DiodeGoneWild watch?v=X5sCM2q6PXU also look at the channels which commented on this video.
I see you are bored at home.
Good series
What you are stating at 14:35 and 16:03 in your video I would agree with when it comes to mains input driven tesla coil setups, but, when using HF drivers such as ZVS and flyback transformers the "wrong" schematic is the only one that will work, the traditional tesla coil primary drive design does not work in an HF drive setup. You are welcome to try for yourself and see.
Very interesting. Looking forward for the other videos of this topic.
Please after this series make some videos about sstc tesla coil, you are good at it, i know it a it will be very interesting :)
Can't wait !!...cheers.
You weren't kididng. ElectroBOOM showed the wrong schematic for a Tesla coil in his latest video about spark gap RF transmitters.
Very informative
Great information
Very informative. Thank you.
thank you very good video👍👍👍
Thank you for this new series. Your explanations of circuitry are very good and I'm waiting next episodes. I have already made secondary TC of 1300 x 0,2 mm and 5,5 cm x 25 cm long but is it too small for SGTC? My original plan was to use it as SSTC coil.
Great, have you ever done a video on a plasma ball , they seem quite simple also, yet do such great things.
Only Dan's Tesla coil will destroy the CoronaVirus!
I joked as well 😑
Could you improve the performance of the Tesla coil by using a HV-SMPS on the input, rather than a simple xformer? Also, could you use an SCR or other device instead of a spark gap, to reduce the energy lost in heating the air?
Wonderful explanation: I was wondering how the AC input charged the capacitor.
Great video, 🗜👍
Fascinating stuff! It it possible to put a voltage multiplier at the primary side for say using a different primary transformer type, or alternately to operate off batteries?
Can you explain and build a early marconi spark gap transmitter?
With coupling transformer and wire antenna! It would be so cool :)
Pls
@The RetroGamer: It would be very interesting from an academic point of view but not very useful in practice: this method was abandoned due to its poor transmission efficiency: all the energy used for the spark did not go in the antenna!
12:47 Or you bought/made an expensive differential probe. Either way, it’s going to be expensive.
Can you make one video explaining the working of a violet ray wand?
Its just a tesla coil probably with relays for switching and a gas discharge tube for a spark gap
Is there any reason that you wouldn't use a bridge rectifier after the first transformer to charge the capacitor from a consistent peak voltage? A set of 10 4KV GP02-40-E3/54 diodes costs about $3.15 on digikey. A 10 nF 6KV capacitor is available for less than $2 and a 100nF capacitor is available for less than $10, also on digikey.
A possible additional benefit of this approach is that film capacitors usually have a much higher DC voltage rating compared to their AC voltage rating. Of course this capacitor would repetitively go from max voltage down to the voltage where the spark quenched, so maybe that's not really DC...
How about running the "wrong" circuit but with DC secondary voltage (using tv flyback transformer)? Is there any drawback?
0:13 *_I didn't expect that_*
😁🇺🇸
I love his accent
I think you should put more stuff from your site on UA-cam🇨🇿🇸🇰
It is such a pity that neither, DiodeGoneWild, nor ElectroBOOM, did explain the detail of these two circuits shown at 13:08 and 13:11.
It all has to do with matching, in one case the source output impedance being matched to the input impedance of a parallel LC tuned circuit operating at resonance and the other case of matching the source output impedance to the input impedance a series LC tuned circuit working at resonance.
The output impedance of a "step-up" high voltage transformer is normally very high due to the number of turns and so it may be considered as a constant current generator and this is an excellent source to feed a PARALLEL LC TUNED CIRCUIT as Electro BOOM did, but this current source feeding a parallel LC tuned circuit operating at resonance will produce a very high output voltage which will be reflected on the insulation of the transformer as suggested by Diode Gone Wild. Again this is a case of a current source feeding a high impedance load which is a perfect matching. The output voltage of a current source depends on the impedance level of the load.
With the circuit suggested by DiodeGoneWild, the tuned circuit is a series circuit that has a very low impedance at resonance and so it must be fed from a voltage source with a low output impedance as otherwise matching is not achieved. The high output impedance of the high voltage transformer is changed to a low output impedance by introducing the spark gap across it, which in fact acts as a short circuit with low impedance. THIS WILL NOT HURT THE CURRENT SOURCE MADE UP OF THE SECONDARY OF THE HIGH VOLTAGE TRANSFORMER as it is basically a constant current source..
This video is one of the issues many students have problems with and DiodeGoneWild should be congratulated for what he picked up between the time duration 13:08 and 13:31.
Note DiodeGoneWild should not have said that the circuit dealing with a parallel LC tuned circuit is WRONG as it is not, and it is correct provided that the insulation of the secondary of the transformer acting as a current source is good enough to take the high voltage punishment of a parallel tuned LC resonating circuit.
So the theory is perfectly correct of both circuits and it is the practical limitations that would prefer the spark gap to be right across the secondary of the high voltage transformer acting as a current source. This becomes a case of a voltage source feeding the low impedance of a series LC circuit working at resonance where the source will have a low voltage and a high current.
This is the reason why placing a capacitor across the spark gap of a fly-back TV high voltage coil will produce what can be said to be a stronger spark. If one pays attention to the color and nature of the spark, one can tell whether the source is acting as a current source or a voltage source!!!!!
Hei. I wanted to ask. Roughly Joe much current must flow in the circuit. Because I connected but it's not working I'm even thinkin the high voltage transformer I'm using isn't giving me enough current and power
Bude něco o SSTC ? snažil jsem se postavit přesně podle tvé SSTC 2. a akorát mi maximálně tak vybouchly tranzisotry :D
Hey does the cap discharge in the last phase of each half cycle even when the spark gap does not ignite? Around min. 12
Does the LC oscillation make it back across the mains transformer from the secondary to the primary? If so, doesn't that dump a bunch of HF noise into your line?
No. The low frequency line transformer windings offer high inductance to the high frequency currents and thus there is little or no HF current in either the secondary or primary of the line transformer.
@@cjay2 There's more than one "inductance" encountered in the design of a transformer:
The "main" inductance is presented across the applied voltage; it's true enough that very little current will flow through this at HF, but it doesn't impede *transformation* of high frequencies. "Leakage" inductance (effectively in series with the windings, created by imperfect coupling) does impede the pass-through of higher frequencies (so SMPS often have to take measures to reduce it); its amount depends on the construction of the transformer. (Consider that an "ideal" transformer would have *zero* leakage inductance; while all real transformers have some, it's usually fairly small unless deliberately designed in. That may be true of short-circuit-proof transformers as would be used with this, but then it'll also be a rather lossy inductance at RF given the core material.) In short, while it may help, I wouldn't rely on it alone to reduce RFI to acceptable levels unless actually tested against the relevant standards.
ElectroBOOM just posted a video about Spark Gap Tesla Coils, and believe it or no, he draw the wrong schematic of the circuit. Check his video out!
He speaks in rythem
Well, if you put ultrasonic speakers with 300kHz and 100kHz frequency with your tesla coils and put your hand between, then all the virus will die with some of your cells
Hi, please explain
Viruses are not alive so they cannot be killed.
I have built a 1,9 meter tall Quad-MOT asynchronous RSGTC acording to this schematic www.loneoceans.com/labs/teslacoil2/ . At first I had 4 MOT with 2 MOT´s as a ballast, with the secondaries shorted out and the primaries in parralel, both MOT´s in series with my 4 main MOT´s(secondaries all in series so about 9kV) and I was getting about 80cm sparks out of the tesla coil. I wanted longer sparks so I tried it without the ballast and I also had 10 MOC´s in series with my Power supply for resonance. Amazingly my 16A breaker didn´t trip but I was getting shorter Sparks than before . Also my Asynchrones RSGTC strangely behaves as a Synchrones one, which means I have to run it at 50 or 100 bps or I don´t get any sparks at all.
Ps.: Love your videos and sorry for my bad english (Greetings from Austia)
It would be very nice if you could help out a bit; my dad and I are a bit frustrated
Thanks!
me: guys iam gonna be killed by corona in the next week
everyone: dissappears
me: i ment tesla coil corona, nothing to worry
can you tell me how can the spark gap turn off when the transformer is still outputting a high voltage ? how can the capacitor charge multiple times in one oscillation of the main power ?
So super nice 👌😍👍💖🌹
Spaaaaarkkkkk guuuuuup
3:21 where is Diode !! Is that Diode gonna wile 😁😁
im wondering could you make something for normal multimeter to measure ac or dc current like clamp meter by adding some winding and core then connect it to normal multimeter to measure current ?!
Is just an high frequency transformer that is applied high voltage in a low voltage side and the outbut of thi extra high voltage it is higher bcz is applied high voltage per turn in primary of tesla coil
could I also use a ZVS driver (Outputs 50KV DC) I think I could because the capacitor would still charge up and discharge/oscillate with the coil. I amalso thinking about using a high voltage variable capacitor.
You might be able to do that if you put a low value high capacitor across the output (of course with a high value resistor in series) and then a spark gap and another capacitor in series with the tesla coil secondary (the first cap would not resonate but just store energy) .
Cool!.
how can i make Inductor?
Niceeeeeee
Do you have anything to do with the channel kuba64?
13:27 that circuit works
I have made it and it works very awesome and it could make up-to 2 inches arcs
I f you want to see it go to my UA-cam channel
I don't say it doesn't work. It's just more likely to damage your hv transformer.
Is a microwave transformer shortcircuit proof?
It's not. I will explain why in the tomorrow's video :).
Shouldn't the capacitor be charged up with DC rather than AC? Or is the principle that the charging, sparking, discharge oscillation all takes place in one half-cycle of the mains, then over again in the opposite polarity? Would that effectively give twice the output voltage, running the output transformer one way then the other? Have I answered my own question?
It's just usually in spark gap circuits one charges up a cap from DC fairly slowly til the gap conducts, I don't think I've seen it this way, but then I'm definitely not an expert.
The higher-frequency oscillation for the output coil is generated by the spark gap oscillating, right? Cos they're negative-resistance oscillators. The stuff people had to put up with before amplification was invented! Amazing how dear Nikola used Steam Age technology to do Space Age work!
If you have a Tesla Coil, you don't get bored in a quarantine. By the way coronavirus dies in hot temperature and arcs are hot.
Your T's on the paper somehow look like Zener-Diodes XD
what is spark gap
Omar Abbassi basically two conductors close enough so a electric spark occurs when voltage goes high enough. The air is a good insulator but when an electric arc is made then the electric arc becomes a good conductor, that’s why he talks about a low voltage drop there.